3(x+5)=7x-21

Simple and best practice solution for 3(x+5)=7x-21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3(x+5)=7x-21 equation:


3(x+5)=7x-21

We simplify the equation to the form, which is simple to understand 
3(x+5)=7x-21

Reorder the terms in parentheses
+(+3x+15)=7x-21

Remove unnecessary parentheses
+3x+15=+7x-21

We move all terms containing x to the left and all other terms to the right. 
+3x-7x=-21-15

We simplify left and right side of the equation. 
-4x=-36

We divide both sides of the equation by -4 to get x. 
x=9

See similar equations:

| 4x-2=8x+63 | | 9x+2+3(7x+1)=0 | | 7m/8=2 | | 6e^3x=15x^2 | | x^2+0.015x-0.009=0 | | 6x-9x+15x=90 | | -x^2-2x+12=0 | | x-6(2)=3x+4 | | 75/a=15 | | 11x+6y=49 | | 4.2x-2.16=1.68-5.5x | | 5-(-2)=3 | | -5(x-1)+8x=7+1 | | -2/3y=-1/9 | | -9x+6+10x=-2+5 | | 4a/7=8 | | x^4-12x-13=0 | | a-2b=-11 | | 2w-4=7-7w+4w | | 15(x-7)=90 | | 5+z=3 | | =3(2X+9)+4(7-X)-12 | | 9y-5=15y-1 | | x+5x=23+1 | | x^2y^2-3xy+3=0 | | x+10+x^2=0 | | xif(1+3x)=14 | | (15-10x)=2x-3 | | 27=3(2x+5) | | (x^2+x)(x^2-x)=0 | | 4(x-1)+2x=6x-4 | | 4z-5=9 |

Equations solver categories